<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>登录</title>
</head>
<body style="margin: 0 auto;">
    <div style="text-align: center;">
        <!-- 登录表单-->
        <form action="/check_user_login" method="post">
            <p>
                <input type="text" name="username" placeholder="用户名">
            </p>
            <p>
                <input type="password" name="password" placeholder="密码">
            </p>
            <p>
                <input type="submit" value="登录">
            </p>
        </form>
    </div>
</body>
</html>